MEXICO CITY – Mexico’s law enforcement agencies have seized cocaine, marijuana and heroin worth a total of $10.9 billion since 2006, removing 50.24 billion doses of illegal drugs from the market, Attorney General Arturo Chavez Chavez said.

The AG released the figures Wednesday during a ceremony marking the 4th anniversary of President Felipe Calderon’s inauguration.

Between 300 and 400 tons of cocaine from South America pass through Mexico each year bound for the United States, according to estimates from various experts, while Mexico produces about 7,000 tons of marijuana annually.

More than 82,450 convictions have been obtained in drug cases in the past four years, Chavez said.

Mexico has extradited 385 people to the United States, an “unprecedented figure,” the attorney general said.